./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 420f46e1636dc611874a0bbfeb0e9dd74d5fb59c9c42275d858865fbb83330f0 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:03:05,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:03:05,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:03:06,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:03:06,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:03:06,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:03:06,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:03:06,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:03:06,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:03:06,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:03:06,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:03:06,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:03:06,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:03:06,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:03:06,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:03:06,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:03:06,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:03:06,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:03:06,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:03:06,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:03:06,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:03:06,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:03:06,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:03:06,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:03:06,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:03:06,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:03:06,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:03:06,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:03:06,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:03:06,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:03:06,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:03:06,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:03:06,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:03:06,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:03:06,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:03:06,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:03:06,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:03:06,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:03:06,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:03:06,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:03:06,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:03:06,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:03:06,105 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:03:06,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:03:06,110 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:03:06,110 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:03:06,111 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:03:06,111 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:03:06,111 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:03:06,112 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:03:06,112 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:03:06,112 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:03:06,113 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:03:06,114 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:03:06,114 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:03:06,114 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:03:06,114 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:03:06,115 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:03:06,115 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:03:06,115 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:03:06,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:03:06,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:03:06,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:03:06,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:03:06,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:03:06,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:03:06,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:03:06,118 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:03:06,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:03:06,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:03:06,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:03:06,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:03:06,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:03:06,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:03:06,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:03:06,122 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:03:06,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:03:06,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:03:06,122 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:03:06,123 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:03:06,123 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 420f46e1636dc611874a0bbfeb0e9dd74d5fb59c9c42275d858865fbb83330f0 [2021-11-25 19:03:06,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:03:06,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:03:06,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:03:06,400 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:03:06,401 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:03:06,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-25 19:03:06,483 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/bin/utaipan-eEHZpOm5b7/data/74009417e/2d8c645b0fb34fd68195c88c93bb9508/FLAG77cb31ca6 [2021-11-25 19:03:07,497 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:03:07,498 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-25 19:03:07,556 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/bin/utaipan-eEHZpOm5b7/data/74009417e/2d8c645b0fb34fd68195c88c93bb9508/FLAG77cb31ca6 [2021-11-25 19:03:07,813 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/bin/utaipan-eEHZpOm5b7/data/74009417e/2d8c645b0fb34fd68195c88c93bb9508 [2021-11-25 19:03:07,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:03:07,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:03:07,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:03:07,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:03:07,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:03:07,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:03:07" (1/1) ... [2021-11-25 19:03:07,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd71043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:07, skipping insertion in model container [2021-11-25 19:03:07,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:03:07" (1/1) ... [2021-11-25 19:03:07,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:03:08,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:03:16,125 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[598078,598091] [2021-11-25 19:03:16,130 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[598223,598236] [2021-11-25 19:03:16,192 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:03:16,355 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:03:17,399 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[598078,598091] [2021-11-25 19:03:17,400 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[598223,598236] [2021-11-25 19:03:17,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:03:18,157 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:03:18,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:18 WrapperNode [2021-11-25 19:03:18,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:03:18,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:03:18,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:03:18,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:03:18,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:18" (1/1) ... [2021-11-25 19:03:18,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:18" (1/1) ... [2021-11-25 19:03:18,980 INFO L137 Inliner]: procedures = 821, calls = 5772, calls flagged for inlining = 428, calls inlined = 368, statements flattened = 11456 [2021-11-25 19:03:18,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:03:18,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:03:18,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:03:18,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:03:18,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:18" (1/1) ... [2021-11-25 19:03:18,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:18" (1/1) ... [2021-11-25 19:03:19,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:18" (1/1) ... [2021-11-25 19:03:19,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:18" (1/1) ... [2021-11-25 19:03:19,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:18" (1/1) ... [2021-11-25 19:03:19,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:18" (1/1) ... [2021-11-25 19:03:19,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:18" (1/1) ... [2021-11-25 19:03:19,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:03:19,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:03:19,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:03:19,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:03:19,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:18" (1/1) ... [2021-11-25 19:03:19,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:03:19,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:03:19,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:03:19,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_912ee7f6-9226-42e6-8db4-901eca244617/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:03:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 19:03:19,680 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 19:03:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2021-11-25 19:03:19,681 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2021-11-25 19:03:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2021-11-25 19:03:19,681 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2021-11-25 19:03:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2021-11-25 19:03:19,682 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2021-11-25 19:03:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2021-11-25 19:03:19,682 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2021-11-25 19:03:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2021-11-25 19:03:19,683 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2021-11-25 19:03:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 19:03:19,683 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 19:03:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-11-25 19:03:19,683 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-11-25 19:03:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 19:03:19,684 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 19:03:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2021-11-25 19:03:19,684 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2021-11-25 19:03:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-25 19:03:19,685 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-25 19:03:19,685 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-25 19:03:19,685 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-25 19:03:19,685 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2021-11-25 19:03:19,685 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2021-11-25 19:03:19,686 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 19:03:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 19:03:19,686 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 19:03:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 19:03:19,686 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2021-11-25 19:03:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2021-11-25 19:03:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-25 19:03:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-25 19:03:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-25 19:03:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-25 19:03:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2021-11-25 19:03:19,688 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2021-11-25 19:03:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_regs_len [2021-11-25 19:03:19,688 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_regs_len [2021-11-25 19:03:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 19:03:19,689 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 19:03:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2021-11-25 19:03:19,689 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2021-11-25 19:03:19,690 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 19:03:19,690 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 19:03:19,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 19:03:19,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 19:03:19,692 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2021-11-25 19:03:19,693 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2021-11-25 19:03:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:03:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2021-11-25 19:03:19,693 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2021-11-25 19:03:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_netpoll [2021-11-25 19:03:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_netpoll [2021-11-25 19:03:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-25 19:03:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-25 19:03:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 19:03:19,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 19:03:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-25 19:03:19,696 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-25 19:03:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-25 19:03:19,696 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-25 19:03:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-25 19:03:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-25 19:03:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 19:03:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 19:03:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2021-11-25 19:03:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2021-11-25 19:03:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-25 19:03:19,698 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-25 19:03:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:03:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 19:03:19,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 19:03:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 19:03:19,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 19:03:19,700 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2021-11-25 19:03:19,700 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2021-11-25 19:03:19,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-25 19:03:19,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-25 19:03:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-25 19:03:19,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-25 19:03:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-25 19:03:19,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-25 19:03:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-25 19:03:19,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-25 19:03:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-25 19:03:19,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-25 19:03:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-25 19:03:19,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-25 19:03:19,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:03:19,706 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2021-11-25 19:03:19,706 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2021-11-25 19:03:19,706 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2021-11-25 19:03:19,706 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2021-11-25 19:03:19,706 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2021-11-25 19:03:19,707 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2021-11-25 19:03:19,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 19:03:19,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 19:03:19,708 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 19:03:19,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 19:03:19,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:03:19,708 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 19:03:19,709 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2021-11-25 19:03:19,709 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2021-11-25 19:03:19,709 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-25 19:03:19,709 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-25 19:03:19,710 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2021-11-25 19:03:19,710 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2021-11-25 19:03:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2021-11-25 19:03:19,714 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2021-11-25 19:03:19,715 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-25 19:03:19,715 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-25 19:03:19,715 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 19:03:19,716 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 19:03:19,718 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2021-11-25 19:03:19,718 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2021-11-25 19:03:19,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 19:03:19,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 19:03:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2021-11-25 19:03:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2021-11-25 19:03:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 19:03:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 19:03:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2021-11-25 19:03:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2021-11-25 19:03:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:03:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:03:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2021-11-25 19:03:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2021-11-25 19:03:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-25 19:03:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-25 19:03:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2021-11-25 19:03:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2021-11-25 19:03:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 19:03:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 19:03:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 19:03:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 19:03:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 19:03:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-25 19:03:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-25 19:03:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-11-25 19:03:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-11-25 19:03:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 19:03:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 19:03:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2021-11-25 19:03:19,730 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2021-11-25 19:03:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 19:03:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2021-11-25 19:03:19,730 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2021-11-25 19:03:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 19:03:19,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 19:03:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2021-11-25 19:03:19,731 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2021-11-25 19:03:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2021-11-25 19:03:19,731 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2021-11-25 19:03:19,732 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-25 19:03:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-25 19:03:19,732 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-25 19:03:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-25 19:03:19,732 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-25 19:03:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-25 19:03:19,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2021-11-25 19:03:19,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2021-11-25 19:03:19,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:03:19,733 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:03:19,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-25 19:03:19,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-25 19:03:19,734 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-25 19:03:19,734 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-25 19:03:19,734 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2021-11-25 19:03:19,734 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2021-11-25 19:03:19,734 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-25 19:03:19,735 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-25 19:03:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_shutdown [2021-11-25 19:03:19,735 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_shutdown [2021-11-25 19:03:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2021-11-25 19:03:19,735 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2021-11-25 19:03:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2021-11-25 19:03:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2021-11-25 19:03:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2021-11-25 19:03:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2021-11-25 19:03:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:03:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 19:03:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 19:03:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:03:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2021-11-25 19:03:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2021-11-25 19:03:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-25 19:03:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-25 19:03:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2021-11-25 19:03:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2021-11-25 19:03:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 19:03:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 19:03:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-11-25 19:03:19,739 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-11-25 19:03:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 19:03:19,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 19:03:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_103 [2021-11-25 19:03:19,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_103 [2021-11-25 19:03:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2021-11-25 19:03:19,740 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2021-11-25 19:03:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-25 19:03:19,740 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-25 19:03:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2021-11-25 19:03:19,741 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2021-11-25 19:03:19,741 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-25 19:03:19,741 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-25 19:03:19,741 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2021-11-25 19:03:19,741 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2021-11-25 19:03:19,742 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_eeprom_len [2021-11-25 19:03:19,742 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_eeprom_len [2021-11-25 19:03:19,742 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 19:03:19,742 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 19:03:19,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:03:19,742 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2021-11-25 19:03:19,743 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2021-11-25 19:03:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 19:03:19,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 19:03:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-11-25 19:03:19,743 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-11-25 19:03:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-25 19:03:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-25 19:03:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2021-11-25 19:03:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2021-11-25 19:03:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 19:03:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 19:03:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-11-25 19:03:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-11-25 19:03:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-25 19:03:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-25 19:03:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2021-11-25 19:03:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2021-11-25 19:03:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2021-11-25 19:03:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2021-11-25 19:03:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-25 19:03:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-25 19:03:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 19:03:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 19:03:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-25 19:03:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-25 19:03:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2021-11-25 19:03:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2021-11-25 19:03:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 19:03:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 19:03:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-25 19:03:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-25 19:03:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2021-11-25 19:03:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2021-11-25 19:03:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2021-11-25 19:03:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2021-11-25 19:03:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2021-11-25 19:03:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2021-11-25 19:03:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2021-11-25 19:03:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2021-11-25 19:03:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2021-11-25 19:03:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2021-11-25 19:03:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 19:03:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 19:03:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2021-11-25 19:03:19,759 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2021-11-25 19:03:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 19:03:19,759 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 19:03:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_close [2021-11-25 19:03:19,759 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_close [2021-11-25 19:03:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 19:03:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 19:03:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 19:03:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 19:03:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2021-11-25 19:03:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2021-11-25 19:03:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:03:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-25 19:03:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-25 19:03:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2021-11-25 19:03:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2021-11-25 19:03:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-25 19:03:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-25 19:03:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-25 19:03:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-25 19:03:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 19:03:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 19:03:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2021-11-25 19:03:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2021-11-25 19:03:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 19:03:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-25 19:03:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-25 19:03:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 19:03:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 19:03:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 19:03:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 19:03:19,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 19:03:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 19:03:19,764 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 19:03:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 19:03:19,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 19:03:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 19:03:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 19:03:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2021-11-25 19:03:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2021-11-25 19:03:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 19:03:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 19:03:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2021-11-25 19:03:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2021-11-25 19:03:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2021-11-25 19:03:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2021-11-25 19:03:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:03:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:03:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2021-11-25 19:03:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2021-11-25 19:03:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:03:19,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:03:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-25 19:03:19,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-25 19:03:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-25 19:03:19,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-25 19:03:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2021-11-25 19:03:19,768 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2021-11-25 19:03:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2021-11-25 19:03:19,768 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2021-11-25 19:03:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-25 19:03:19,768 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-25 19:03:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2021-11-25 19:03:19,769 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2021-11-25 19:03:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-11-25 19:03:19,769 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-11-25 19:03:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-25 19:03:19,769 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-25 19:03:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2021-11-25 19:03:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2021-11-25 19:03:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 19:03:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 19:03:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 19:03:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2021-11-25 19:03:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2021-11-25 19:03:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_timeout [2021-11-25 19:03:19,771 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_timeout [2021-11-25 19:03:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-25 19:03:19,771 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-25 19:03:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2021-11-25 19:03:19,771 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2021-11-25 19:03:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2021-11-25 19:03:19,772 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2021-11-25 19:03:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-25 19:03:19,772 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-25 19:03:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2021-11-25 19:03:19,772 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2021-11-25 19:03:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-25 19:03:19,773 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-25 19:03:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-25 19:03:19,773 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-25 19:03:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2021-11-25 19:03:19,773 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2021-11-25 19:03:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2021-11-25 19:03:19,773 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2021-11-25 19:03:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-11-25 19:03:19,774 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-11-25 19:03:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2021-11-25 19:03:19,774 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2021-11-25 19:03:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_phy_lock_of_sky2_port [2021-11-25 19:03:19,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_phy_lock_of_sky2_port [2021-11-25 19:03:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2021-11-25 19:03:19,775 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2021-11-25 19:03:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-25 19:03:19,775 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-25 19:03:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-25 19:03:19,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-25 19:03:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 19:03:19,776 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 19:03:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 19:03:19,776 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 19:03:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:03:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_nway_reset [2021-11-25 19:03:19,776 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_nway_reset [2021-11-25 19:03:19,777 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 19:03:19,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 19:03:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-25 19:03:19,778 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-25 19:03:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-25 19:03:19,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-25 19:03:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-25 19:03:19,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-25 19:03:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-25 19:03:19,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-25 19:03:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 19:03:19,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 19:03:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure tx_avail [2021-11-25 19:03:19,779 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_avail [2021-11-25 19:03:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2021-11-25 19:03:19,780 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2021-11-25 19:03:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-25 19:03:19,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-25 19:03:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2021-11-25 19:03:19,780 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2021-11-25 19:03:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2021-11-25 19:03:19,781 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2021-11-25 19:03:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2021-11-25 19:03:19,781 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2021-11-25 19:03:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 19:03:19,781 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 19:03:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-25 19:03:19,782 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-25 19:03:19,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2021-11-25 19:03:19,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2021-11-25 19:03:19,782 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-25 19:03:19,782 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-25 19:03:19,782 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2021-11-25 19:03:19,783 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2021-11-25 19:03:19,783 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 19:03:19,783 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 19:03:19,783 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-25 19:03:19,783 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-25 19:03:19,783 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-25 19:03:19,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-25 19:03:19,784 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2021-11-25 19:03:19,784 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2021-11-25 19:03:19,784 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 19:03:19,784 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 19:03:19,784 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2021-11-25 19:03:19,784 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2021-11-25 19:03:19,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_104 [2021-11-25 19:03:19,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_104 [2021-11-25 19:03:19,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2021-11-25 19:03:19,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2021-11-25 19:03:19,785 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-25 19:03:19,785 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-25 19:03:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2021-11-25 19:03:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2021-11-25 19:03:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 19:03:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 19:03:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-25 19:03:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-25 19:03:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2021-11-25 19:03:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2021-11-25 19:03:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2021-11-25 19:03:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2021-11-25 19:03:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-25 19:03:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-25 19:03:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 19:03:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 19:03:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2021-11-25 19:03:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2021-11-25 19:03:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:03:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2021-11-25 19:03:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2021-11-25 19:03:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 19:03:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 19:03:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-25 19:03:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-25 19:03:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_open [2021-11-25 19:03:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_open [2021-11-25 19:03:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-25 19:03:21,470 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:03:21,479 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:03:21,624 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 19:03:37,842 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 19:03:38,131 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:03:41,423 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:03:41,423 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-25 19:03:41,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:03:41 BoogieIcfgContainer [2021-11-25 19:03:41,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:03:41,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:03:41,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:03:41,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:03:41,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:03:07" (1/3) ... [2021-11-25 19:03:41,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3529ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:03:41, skipping insertion in model container [2021-11-25 19:03:41,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:18" (2/3) ... [2021-11-25 19:03:41,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3529ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:03:41, skipping insertion in model container [2021-11-25 19:03:41,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:03:41" (3/3) ... [2021-11-25 19:03:41,449 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-25 19:03:41,460 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:03:41,460 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:03:41,558 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:03:41,572 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:03:41,573 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:03:41,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 3400 states, 1936 states have (on average 1.3099173553719008) internal successors, (2536), 2015 states have internal predecessors, (2536), 1249 states have call successors, (1249), 216 states have call predecessors, (1249), 215 states have return successors, (1239), 1214 states have call predecessors, (1239), 1239 states have call successors, (1239) [2021-11-25 19:03:41,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2021-11-25 19:03:41,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:03:41,766 INFO L514 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:03:41,766 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:03:41,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:03:41,774 INFO L85 PathProgramCache]: Analyzing trace with hash -637935520, now seen corresponding path program 1 times [2021-11-25 19:03:41,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:03:41,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558674919] [2021-11-25 19:03:41,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:03:41,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:03:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:03:43,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2021-11-25 19:03:43,172 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:03:43,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558674919] [2021-11-25 19:03:43,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558674919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:03:43,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:03:43,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:03:43,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622356141] [2021-11-25 19:03:43,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:03:43,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:03:43,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:03:43,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:03:43,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:03:43,229 INFO L87 Difference]: Start difference. First operand has 3400 states, 1936 states have (on average 1.3099173553719008) internal successors, (2536), 2015 states have internal predecessors, (2536), 1249 states have call successors, (1249), 216 states have call predecessors, (1249), 215 states have return successors, (1239), 1214 states have call predecessors, (1239), 1239 states have call successors, (1239) Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-25 19:03:49,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:03:53,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:03:53,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:03:53,399 INFO L93 Difference]: Finished difference Result 9726 states and 14436 transitions. [2021-11-25 19:03:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:03:53,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 378 [2021-11-25 19:03:53,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:03:53,489 INFO L225 Difference]: With dead ends: 9726 [2021-11-25 19:03:53,489 INFO L226 Difference]: Without dead ends: 6318 [2021-11-25 19:03:53,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:03:53,533 INFO L933 BasicCegarLoop]: 5488 mSDtfsCounter, 4425 mSDsluCounter, 4942 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4427 SdHoareTripleChecker+Valid, 9841 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:03:53,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4427 Valid, 9841 Invalid, 1276 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1257 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time] [2021-11-25 19:03:53,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6318 states. [2021-11-25 19:03:54,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6318 to 6315. [2021-11-25 19:03:54,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6315 states, 3623 states have (on average 1.304995859784709) internal successors, (4728), 3770 states have internal predecessors, (4728), 2277 states have call successors, (2277), 415 states have call predecessors, (2277), 414 states have return successors, (2277), 2227 states have call predecessors, (2277), 2277 states have call successors, (2277) [2021-11-25 19:03:54,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6315 states to 6315 states and 9282 transitions. [2021-11-25 19:03:54,318 INFO L78 Accepts]: Start accepts. Automaton has 6315 states and 9282 transitions. Word has length 378 [2021-11-25 19:03:54,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:03:54,327 INFO L470 AbstractCegarLoop]: Abstraction has 6315 states and 9282 transitions. [2021-11-25 19:03:54,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-25 19:03:54,329 INFO L276 IsEmpty]: Start isEmpty. Operand 6315 states and 9282 transitions. [2021-11-25 19:03:54,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2021-11-25 19:03:54,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:03:54,356 INFO L514 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:03:54,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:03:54,357 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:03:54,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:03:54,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1469055558, now seen corresponding path program 1 times [2021-11-25 19:03:54,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:03:54,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092781332] [2021-11-25 19:03:54,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:03:54,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:03:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:03:55,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2021-11-25 19:03:55,261 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:03:55,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092781332] [2021-11-25 19:03:55,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092781332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:03:55,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:03:55,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:03:55,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935775134] [2021-11-25 19:03:55,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:03:55,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:03:55,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:03:55,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:03:55,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:03:55,267 INFO L87 Difference]: Start difference. First operand 6315 states and 9282 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-25 19:04:01,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:04:01,720 INFO L93 Difference]: Finished difference Result 18472 states and 27146 transitions. [2021-11-25 19:04:01,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:04:01,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 379 [2021-11-25 19:04:01,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:04:01,855 INFO L225 Difference]: With dead ends: 18472 [2021-11-25 19:04:01,855 INFO L226 Difference]: Without dead ends: 12222 [2021-11-25 19:04:01,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:04:01,906 INFO L933 BasicCegarLoop]: 6328 mSDtfsCounter, 4581 mSDsluCounter, 4838 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4581 SdHoareTripleChecker+Valid, 10595 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:04:01,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4581 Valid, 10595 Invalid, 1430 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-11-25 19:04:01,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12222 states. [2021-11-25 19:04:03,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12222 to 12216. [2021-11-25 19:04:03,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12216 states, 6997 states have (on average 1.2994140345862513) internal successors, (9092), 7283 states have internal predecessors, (9092), 4404 states have call successors, (4404), 816 states have call predecessors, (4404), 814 states have return successors, (4404), 4308 states have call predecessors, (4404), 4404 states have call successors, (4404) [2021-11-25 19:04:03,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12216 states to 12216 states and 17900 transitions. [2021-11-25 19:04:03,207 INFO L78 Accepts]: Start accepts. Automaton has 12216 states and 17900 transitions. Word has length 379 [2021-11-25 19:04:03,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:04:03,213 INFO L470 AbstractCegarLoop]: Abstraction has 12216 states and 17900 transitions. [2021-11-25 19:04:03,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-25 19:04:03,215 INFO L276 IsEmpty]: Start isEmpty. Operand 12216 states and 17900 transitions. [2021-11-25 19:04:03,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2021-11-25 19:04:03,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:03,247 INFO L514 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:04:03,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:04:03,247 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:04:03,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:03,249 INFO L85 PathProgramCache]: Analyzing trace with hash 280475068, now seen corresponding path program 1 times [2021-11-25 19:04:03,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:03,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123480336] [2021-11-25 19:04:03,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:03,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:04:04,038 INFO L134 CoverageAnalysis]: Checked inductivity of 4035 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4035 trivial. 0 not checked. [2021-11-25 19:04:04,039 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:04,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123480336] [2021-11-25 19:04:04,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123480336] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:04:04,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:04:04,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:04:04,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573071464] [2021-11-25 19:04:04,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:04:04,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:04:04,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:04:04,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:04:04,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:04:04,048 INFO L87 Difference]: Start difference. First operand 12216 states and 17900 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-25 19:04:10,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:04:13,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:04:13,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:04:13,704 INFO L93 Difference]: Finished difference Result 35966 states and 52660 transitions. [2021-11-25 19:04:13,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:04:13,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 403 [2021-11-25 19:04:13,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:04:13,894 INFO L225 Difference]: With dead ends: 35966 [2021-11-25 19:04:13,894 INFO L226 Difference]: Without dead ends: 23815 [2021-11-25 19:04:13,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:04:13,987 INFO L933 BasicCegarLoop]: 6540 mSDtfsCounter, 4692 mSDsluCounter, 4887 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4694 SdHoareTripleChecker+Valid, 10838 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:04:13,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4694 Valid, 10838 Invalid, 1418 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1404 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2021-11-25 19:04:14,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23815 states. [2021-11-25 19:04:15,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23815 to 23805. [2021-11-25 19:04:15,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23805 states, 13679 states have (on average 1.2984867314862198) internal successors, (17762), 14238 states have internal predecessors, (17762), 8523 states have call successors, (8523), 1608 states have call predecessors, (8523), 1602 states have return successors, (8523), 8331 states have call predecessors, (8523), 8523 states have call successors, (8523) [2021-11-25 19:04:15,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23805 states to 23805 states and 34808 transitions. [2021-11-25 19:04:15,670 INFO L78 Accepts]: Start accepts. Automaton has 23805 states and 34808 transitions. Word has length 403 [2021-11-25 19:04:15,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:04:15,671 INFO L470 AbstractCegarLoop]: Abstraction has 23805 states and 34808 transitions. [2021-11-25 19:04:15,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-25 19:04:15,672 INFO L276 IsEmpty]: Start isEmpty. Operand 23805 states and 34808 transitions. [2021-11-25 19:04:15,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-11-25 19:04:15,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:15,709 INFO L514 BasicCegarLoop]: trace histogram [34, 32, 32, 32, 32, 32, 32, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:04:15,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:04:15,709 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:04:15,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:15,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1457570332, now seen corresponding path program 1 times [2021-11-25 19:04:15,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:15,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702738811] [2021-11-25 19:04:15,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:15,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:04:16,237 INFO L134 CoverageAnalysis]: Checked inductivity of 4110 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4107 trivial. 0 not checked. [2021-11-25 19:04:16,237 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:16,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702738811] [2021-11-25 19:04:16,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702738811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:04:16,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:04:16,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:04:16,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369523067] [2021-11-25 19:04:16,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:04:16,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:04:16,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:04:16,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:04:16,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:04:16,241 INFO L87 Difference]: Start difference. First operand 23805 states and 34808 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 19:04:22,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:04:22,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:04:22,939 INFO L93 Difference]: Finished difference Result 50115 states and 73126 transitions. [2021-11-25 19:04:22,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:04:22,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 420 [2021-11-25 19:04:22,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:04:23,089 INFO L225 Difference]: With dead ends: 50115 [2021-11-25 19:04:23,089 INFO L226 Difference]: Without dead ends: 26375 [2021-11-25 19:04:23,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:04:23,174 INFO L933 BasicCegarLoop]: 5667 mSDtfsCounter, 3447 mSDsluCounter, 4853 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3447 SdHoareTripleChecker+Valid, 9934 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:04:23,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3447 Valid, 9934 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-11-25 19:04:23,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26375 states. [2021-11-25 19:04:24,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26375 to 26373. [2021-11-25 19:04:24,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26373 states, 15183 states have (on average 1.2956596193110717) internal successors, (19672), 15789 states have internal predecessors, (19672), 9368 states have call successors, (9368), 1827 states have call predecessors, (9368), 1821 states have return successors, (9368), 9160 states have call predecessors, (9368), 9368 states have call successors, (9368) [2021-11-25 19:04:25,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26373 states to 26373 states and 38408 transitions. [2021-11-25 19:04:25,028 INFO L78 Accepts]: Start accepts. Automaton has 26373 states and 38408 transitions. Word has length 420 [2021-11-25 19:04:25,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:04:25,030 INFO L470 AbstractCegarLoop]: Abstraction has 26373 states and 38408 transitions. [2021-11-25 19:04:25,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 19:04:25,031 INFO L276 IsEmpty]: Start isEmpty. Operand 26373 states and 38408 transitions. [2021-11-25 19:04:25,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-11-25 19:04:25,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:25,062 INFO L514 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:04:25,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:04:25,063 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:04:25,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:25,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1598464471, now seen corresponding path program 1 times [2021-11-25 19:04:25,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:25,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94135463] [2021-11-25 19:04:25,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:25,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:04:25,796 INFO L134 CoverageAnalysis]: Checked inductivity of 4040 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4040 trivial. 0 not checked. [2021-11-25 19:04:25,797 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:25,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94135463] [2021-11-25 19:04:25,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94135463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:04:25,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:04:25,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:04:25,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912764207] [2021-11-25 19:04:25,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:04:25,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:04:25,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:04:25,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:04:25,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:04:25,800 INFO L87 Difference]: Start difference. First operand 26373 states and 38408 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 19:04:31,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:04:32,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:04:32,270 INFO L93 Difference]: Finished difference Result 67366 states and 97634 transitions. [2021-11-25 19:04:32,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:04:32,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 434 [2021-11-25 19:04:32,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:04:32,552 INFO L225 Difference]: With dead ends: 67366 [2021-11-25 19:04:32,553 INFO L226 Difference]: Without dead ends: 41058 [2021-11-25 19:04:32,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:04:32,674 INFO L933 BasicCegarLoop]: 5292 mSDtfsCounter, 3630 mSDsluCounter, 4803 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3631 SdHoareTripleChecker+Valid, 9554 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:04:32,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3631 Valid, 9554 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1266 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2021-11-25 19:04:32,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41058 states. [2021-11-25 19:04:34,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41058 to 41046. [2021-11-25 19:04:35,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41046 states, 23310 states have (on average 1.2787215787215787) internal successors, (29807), 24265 states have internal predecessors, (29807), 14720 states have call successors, (14720), 3034 states have call predecessors, (14720), 3015 states have return successors, (14740), 14377 states have call predecessors, (14740), 14720 states have call successors, (14740) [2021-11-25 19:04:35,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41046 states to 41046 states and 59267 transitions. [2021-11-25 19:04:35,290 INFO L78 Accepts]: Start accepts. Automaton has 41046 states and 59267 transitions. Word has length 434 [2021-11-25 19:04:35,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:04:35,291 INFO L470 AbstractCegarLoop]: Abstraction has 41046 states and 59267 transitions. [2021-11-25 19:04:35,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-25 19:04:35,292 INFO L276 IsEmpty]: Start isEmpty. Operand 41046 states and 59267 transitions. [2021-11-25 19:04:35,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2021-11-25 19:04:35,586 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:35,586 INFO L514 BasicCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:04:35,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:04:35,587 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:04:35,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:35,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1966946504, now seen corresponding path program 1 times [2021-11-25 19:04:35,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:35,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761560807] [2021-11-25 19:04:35,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:35,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:04:36,228 INFO L134 CoverageAnalysis]: Checked inductivity of 4521 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2021-11-25 19:04:36,228 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:36,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761560807] [2021-11-25 19:04:36,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761560807] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:04:36,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:04:36,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:04:36,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436311307] [2021-11-25 19:04:36,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:04:36,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:04:36,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:04:36,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:04:36,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:04:36,232 INFO L87 Difference]: Start difference. First operand 41046 states and 59267 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-25 19:04:42,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:04:43,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:04:43,656 INFO L93 Difference]: Finished difference Result 99772 states and 144103 transitions. [2021-11-25 19:04:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:04:43,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 439 [2021-11-25 19:04:43,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:04:44,031 INFO L225 Difference]: With dead ends: 99772 [2021-11-25 19:04:44,031 INFO L226 Difference]: Without dead ends: 59131 [2021-11-25 19:04:44,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:04:44,228 INFO L933 BasicCegarLoop]: 6505 mSDtfsCounter, 4344 mSDsluCounter, 4869 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4346 SdHoareTripleChecker+Valid, 10786 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:04:44,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4346 Valid, 10786 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1501 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2021-11-25 19:04:44,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59131 states. [2021-11-25 19:04:46,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59131 to 59121. [2021-11-25 19:04:46,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59121 states, 33615 states have (on average 1.2779116465863454) internal successors, (42957), 34977 states have internal predecessors, (42957), 21140 states have call successors, (21140), 4393 states have call predecessors, (21140), 4365 states have return successors, (21164), 20642 states have call predecessors, (21164), 21140 states have call successors, (21164) [2021-11-25 19:04:47,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59121 states to 59121 states and 85261 transitions. [2021-11-25 19:04:47,532 INFO L78 Accepts]: Start accepts. Automaton has 59121 states and 85261 transitions. Word has length 439 [2021-11-25 19:04:47,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:04:47,535 INFO L470 AbstractCegarLoop]: Abstraction has 59121 states and 85261 transitions. [2021-11-25 19:04:47,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-25 19:04:47,536 INFO L276 IsEmpty]: Start isEmpty. Operand 59121 states and 85261 transitions. [2021-11-25 19:04:47,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2021-11-25 19:04:47,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:47,584 INFO L514 BasicCegarLoop]: trace histogram [38, 33, 33, 33, 33, 33, 33, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:04:47,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 19:04:47,584 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:04:47,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:47,585 INFO L85 PathProgramCache]: Analyzing trace with hash -198035033, now seen corresponding path program 1 times [2021-11-25 19:04:47,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:47,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395511298] [2021-11-25 19:04:47,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:47,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:04:48,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4635 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4628 trivial. 0 not checked. [2021-11-25 19:04:48,143 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:48,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395511298] [2021-11-25 19:04:48,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395511298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:04:48,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:04:48,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:04:48,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457059726] [2021-11-25 19:04:48,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:04:48,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:04:48,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:04:48,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:04:48,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:04:48,147 INFO L87 Difference]: Start difference. First operand 59121 states and 85261 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-25 19:04:54,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:04:58,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:04:59,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:04:59,272 INFO L93 Difference]: Finished difference Result 145057 states and 209265 transitions. [2021-11-25 19:04:59,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:04:59,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 476 [2021-11-25 19:04:59,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:04:59,835 INFO L225 Difference]: With dead ends: 145057 [2021-11-25 19:04:59,835 INFO L226 Difference]: Without dead ends: 86341 [2021-11-25 19:05:00,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:05:00,129 INFO L933 BasicCegarLoop]: 8473 mSDtfsCounter, 4728 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 1822 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4728 SdHoareTripleChecker+Valid, 12769 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1822 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:05:00,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4728 Valid, 12769 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1822 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2021-11-25 19:05:00,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86341 states. [2021-11-25 19:05:03,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86341 to 86315. [2021-11-25 19:05:03,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86315 states, 49165 states have (on average 1.2782467202278043) internal successors, (62845), 51159 states have internal predecessors, (62845), 30772 states have call successors, (30772), 6417 states have call predecessors, (30772), 6377 states have return successors, (30808), 30036 states have call predecessors, (30808), 30772 states have call successors, (30808) [2021-11-25 19:05:04,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86315 states to 86315 states and 124425 transitions. [2021-11-25 19:05:04,399 INFO L78 Accepts]: Start accepts. Automaton has 86315 states and 124425 transitions. Word has length 476 [2021-11-25 19:05:04,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:05:04,400 INFO L470 AbstractCegarLoop]: Abstraction has 86315 states and 124425 transitions. [2021-11-25 19:05:04,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-25 19:05:04,401 INFO L276 IsEmpty]: Start isEmpty. Operand 86315 states and 124425 transitions. [2021-11-25 19:05:04,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2021-11-25 19:05:04,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:05:04,448 INFO L514 BasicCegarLoop]: trace histogram [39, 33, 33, 33, 33, 33, 33, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:05:04,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 19:05:04,448 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:05:04,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:05:04,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1595003230, now seen corresponding path program 1 times [2021-11-25 19:05:04,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:05:04,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044207272] [2021-11-25 19:05:04,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:04,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:05:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:05:05,989 INFO L134 CoverageAnalysis]: Checked inductivity of 4762 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4762 trivial. 0 not checked. [2021-11-25 19:05:05,990 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:05:05,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044207272] [2021-11-25 19:05:05,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044207272] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:05:05,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:05:05,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 19:05:05,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438027883] [2021-11-25 19:05:05,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:05:05,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 19:05:05,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:05:05,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 19:05:05,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:05:05,993 INFO L87 Difference]: Start difference. First operand 86315 states and 124425 transitions. Second operand has 6 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-25 19:05:25,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:05:27,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:05:27,836 INFO L93 Difference]: Finished difference Result 154583 states and 222913 transitions. [2021-11-25 19:05:27,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 19:05:27,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) Word has length 503 [2021-11-25 19:05:27,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:05:28,978 INFO L225 Difference]: With dead ends: 154583 [2021-11-25 19:05:28,979 INFO L226 Difference]: Without dead ends: 154581 [2021-11-25 19:05:29,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 19:05:29,039 INFO L933 BasicCegarLoop]: 5443 mSDtfsCounter, 3959 mSDsluCounter, 21028 mSDsCounter, 0 mSdLazyCounter, 5171 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3969 SdHoareTripleChecker+Valid, 24013 SdHoareTripleChecker+Invalid, 5180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 5171 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:05:29,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3969 Valid, 24013 Invalid, 5180 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 5171 Invalid, 1 Unknown, 0 Unchecked, 16.1s Time] [2021-11-25 19:05:29,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154581 states. [2021-11-25 19:05:37,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154581 to 154101. [2021-11-25 19:05:37,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154101 states, 88742 states have (on average 1.2844312726781006) internal successors, (113983), 92527 states have internal predecessors, (113983), 53521 states have call successors, (53521), 12113 states have call predecessors, (53521), 11837 states have return successors, (54582), 51669 states have call predecessors, (54582), 53521 states have call successors, (54582) [2021-11-25 19:05:38,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154101 states to 154101 states and 222086 transitions. [2021-11-25 19:05:38,850 INFO L78 Accepts]: Start accepts. Automaton has 154101 states and 222086 transitions. Word has length 503 [2021-11-25 19:05:38,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:05:38,852 INFO L470 AbstractCegarLoop]: Abstraction has 154101 states and 222086 transitions. [2021-11-25 19:05:38,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-25 19:05:38,852 INFO L276 IsEmpty]: Start isEmpty. Operand 154101 states and 222086 transitions. [2021-11-25 19:05:39,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 858 [2021-11-25 19:05:39,065 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:05:39,067 INFO L514 BasicCegarLoop]: trace histogram [40, 33, 33, 33, 33, 33, 33, 17, 11, 11, 11, 11, 11, 11, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:05:39,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 19:05:39,067 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:05:39,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:05:39,068 INFO L85 PathProgramCache]: Analyzing trace with hash 932875626, now seen corresponding path program 1 times [2021-11-25 19:05:39,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:05:39,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818921241] [2021-11-25 19:05:39,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:39,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:05:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:05:39,790 INFO L134 CoverageAnalysis]: Checked inductivity of 5558 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 5521 trivial. 0 not checked. [2021-11-25 19:05:39,790 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:05:39,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818921241] [2021-11-25 19:05:39,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818921241] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:05:39,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:05:39,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:05:39,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780667540] [2021-11-25 19:05:39,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:05:39,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:05:39,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:05:39,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:05:39,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:05:39,794 INFO L87 Difference]: Start difference. First operand 154101 states and 222086 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 2 states have call successors, (117), 2 states have call predecessors, (117), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113)